Congrats on the build your doing.
The J heads can be expensive to rebuild and/or port without a big return in flow. While there not bad considering there a factory iron part not designed for high performance, the can do fairly well for what they are. The current crop of aluminum heads is an overall better purchase though more expensive. It will show up well in the power output.
Healthy cam you have there. It’s a bit hard to read on my phone but it’s 240* I take @ .050 with .536 lift? Hard to see the rest. For me at least. 245/
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